Enable caBLE on your iPhone for testing caBLE allows a nearby device (such as your iPhone) to be used an a webauthn authenticator. Given my work on WebauthnRS I naturally wanted to test this! When I initially tried to test caBLE with webauthn via my iPhone, I recieved an error that the operation wasn't available at this time. There was no other information available. Debugging After some digging into Console.app, I found the log message from AuthenticationServicesAgent which stated: "Syncing ...
